PC shutdown during lightning?

[cebutech]

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Again: 2X PC shutdown wala man kilat etc...ga ulan lang all of a sudden ni shutdown at no reason.

Newly incident: Ni shutdown again w/ no reason plus

Unsa kaha cause ani, I tried opening the CPU but I found no busted capacitors etc...everything looks
new still.

Heres my pc specs:

4800+ Am2 Processor
M2-MX SE plus mobo
2 X 1GB Kingston PC800
8500GT 512/128 PCIEX VCARD
2 X optical drives (1 DVDROM IDE and 1 DVDRW IDE)
250GB SATA Seagate
1 PCI LAN CARD
500W HEC RAPTOR
Giant UPS @ 4-5 yrs na

Auxiliaries:
1 X 120mm intake fan Silverstone w/ controller
1 X 90mm Exhaust fan
1 Pair CCFL kadtong pinaka taas sa sunbeam

Akong gi total sa extreme power supply calculator kay 271 ra minimum so if I have 500W psu sobra ra gani..I dont know asa ang problem since 1 yr nani wa ni mag problema. I added nothing of the system.

Btw, I never overclocked and never abused the PC.

Unsa kaha cause ani, please suggest thanks...

Check CPU/Heatsink. Basin kinihanglan ra ilisan ang thermal grease between CPU and heatsink.
If imong tan-aw ok ra ang CPU/heatsink, try another power supply.

[cebutech]

turning off is not enough... you need to disconnected all wirings coming from the wall socket, any wirings originating from outside the house/building.

I agree.

[goldfinger]

ok na mga bro I figured out na asa ang problem.

My 4 yrs old UPS nag problema di na mo charge kalit lang trip off ang PC if di na cya ka daug, builtin AVR man unta mao ako kalibugan pero concluded ok na UPS ang prob dili akong PC.

So thanks sa mga input ako napud prob UPS.

[cebutech]

ok na mga bro I figured out na asa ang problem.

My 4 yrs old UPS nag problema di na mo charge kalit lang trip off ang PC if di na cya ka daug, builtin AVR man unta mao ako kalibugan pero concluded ok na UPS ang prob dili akong PC.

So thanks sa mga input ako napud prob UPS.

Kung mag low voltage sa inyo, useless gihapon na AVR.

[goldfinger]

Bro wala koy AVR kundi UPS ang UPS nako has a builtin AVR mao nag wonder ko di unta mo trip off cguro usa ra ilang power source mao palong usa palong tanan.

I know oi AVR is useless if lowvoltage gikan nako ana diri mao I didnt buy AVR.

Cge..ty

[dmelsie]

AVR is not useless if dili kanang cheapo type imo gamiton
gamit namo sa balay is Nippon brand Automatic Voltage Regulator napalit namo sa uso pa low voltage sa amoa place if ting 6 pm na gane dili na ma on amoa ref pero if isak sak sa ato nga avr mo andar daun ma regulate niya ang kuryente...

and so far if mag sigi kilat liti dug dug ga on gihapon akoa pc man mag sigi man ko duwa gane so far wala ko ka encounter mo pawng or mo restart

[goldfinger]

@dmelsie: you got the point